First time for me to own such a style of slip on sandal. Built in arch (nice feature). However, the feel of the sandal has been difficult for me to adjust. Can't say it's the product; it just that I am used to a sole that is more flexible. With that in mind, the arch support, while effect also is a bit painful to endure, at least for this break-in period. I also find that my foot slips a bit because the sole is so rigid. I probably need to wear them longer to make a better assessment. They look good otherwise!